Remove pip dependency and others

[wimglenn]

• Table rendering changed from tabulate to rich
• Tree rendering changed from anytree to rich
• Sdist build changed from pip to uv
• Package finding changed from pip to unearth
• Cache provider changed from cachelib to stdlib (functools)
• TOML serializer changed from toml to tomli-w

[codecov]

Codecov Report

Attention: Patch coverage is 94.11765% with 18 lines in your changes missing coverage. Please review.

Project coverage is 97.16%. Comparing base (c46bc74) to head (f1c4bb8).
Report is 1 commits behind head on main.

Files with missing lines	Patch %	Lines
johnnydep/lib.py	95.02%	6 Missing and 5 partials ⚠️
johnnydep/cli.py	45.45%	3 Missing and 3 partials ⚠️
johnnydep/util.py	96.55%	0 Missing and 1 partial ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #140      +/-   ##
==========================================
+ Coverage   92.35%   97.16%   +4.81%     
==========================================
  Files           8        8              
  Lines         706      671      -35     
  Branches      153      127      -26     
==========================================
  Hits          652      652              
+ Misses         35        9      -26     
+ Partials       19       10       -9     

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